Podcast
Questions and Answers
If a private residence has a single fire extinguisher, where should it be located?
If a private residence has a single fire extinguisher, where should it be located?
Kitchen
Which class of fire includes cloth?
Which class of fire includes cloth?
What is the most commonly used extinguishing agent for class A fires?
What is the most commonly used extinguishing agent for class A fires?
Water
Which class of fires involves energized electrical equipment?
Which class of fires involves energized electrical equipment?
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Which extinguishing agent is suitable for use on a class C fire?
Which extinguishing agent is suitable for use on a class C fire?
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The traditional symbol for a class D fire extinguisher is a(n) ___________.
The traditional symbol for a class D fire extinguisher is a(n) ___________.
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A class C extinguisher is rated for use on ________.
A class C extinguisher is rated for use on ________.
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What does it mean when a fire extinguisher has a pictograph with a red slash through it?
What does it mean when a fire extinguisher has a pictograph with a red slash through it?
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To qualify as a light hazard for the purpose of extinguisher selection and placement, the majority of materials in the area must ________.
To qualify as a light hazard for the purpose of extinguisher selection and placement, the majority of materials in the area must ________.
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Dry chemical extinguishers may be used on class C fires because they __________.
Dry chemical extinguishers may be used on class C fires because they __________.
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Which statement about the numerical rating of a class K extinguisher is correct?
Which statement about the numerical rating of a class K extinguisher is correct?
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What residue does a CO2 fire extinguisher leave when discharged?
What residue does a CO2 fire extinguisher leave when discharged?
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The use of halon 1211 is strictly controlled because it is ______.
The use of halon 1211 is strictly controlled because it is ______.
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Which agent is approved for use in a class K system?
Which agent is approved for use in a class K system?
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Class D agents work primarily by _____.
Class D agents work primarily by _____.
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A class A fire extinguisher with a numerical rating of 2 contains ______________ gallons of water.
A class A fire extinguisher with a numerical rating of 2 contains ______________ gallons of water.
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What is the best way to extinguish a class C fire?
What is the best way to extinguish a class C fire?
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Which class of fire is depicted in the pictograph system by a burning trash can next to a wood fire?
Which class of fire is depicted in the pictograph system by a burning trash can next to a wood fire?
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Which hazard category includes automotive service or repair facilities?
Which hazard category includes automotive service or repair facilities?
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Which extinguishing method is being used when a foam blanket is placed over the surface of a burning liquid?
Which extinguishing method is being used when a foam blanket is placed over the surface of a burning liquid?
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How do multipurpose dry chemical agents prevent rekindling of class A fuel?
How do multipurpose dry chemical agents prevent rekindling of class A fuel?
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A class B foam extinguisher is not rated for which fuel?
A class B foam extinguisher is not rated for which fuel?
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Which statement best summarizes when a dry chemical extinguisher should be serviced and recharged?
Which statement best summarizes when a dry chemical extinguisher should be serviced and recharged?
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Which statement is correct regarding class D extinguishing agents?
Which statement is correct regarding class D extinguishing agents?
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What does a rating of 40 on a class B extinguisher mean?
What does a rating of 40 on a class B extinguisher mean?
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Study Notes
Fire Extinguisher Locations and Classes
- A single fire extinguisher in a private residence should be located in the kitchen.
- Class A fires involve combustible materials such as cloth.
- The most common extinguishing agent for Class A fires is water.
- Class C fires involve energized electrical equipment.
Extinguishing Agents and Symbols
- Carbon Dioxide is suitable for use on Class C fires.
- A Class D fire extinguisher traditionally displays a yellow star symbol.
- Class C extinguishers are specifically rated for use on energized electrical equipment.
- A pictograph with a red slash on a fire extinguisher indicates that using it on that class of fire could be hazardous.
Fire Extinguisher Ratings and Hazards
- For a space to qualify as a light hazard, the majority of materials must be noncombustible.
- Dry chemical extinguishers are safe for Class C fires as they do not conduct electricity.
- Class K extinguishers do not have a numerical rating.
- CO2 fire extinguishers leave no residue when discharged.
Environmental Considerations and Specific Agents
- The use of Halon 1211 is controlled due to its harmful impact on the environment.
- Wet chemical agents are approved for use in Class K systems.
- Class D agents extinguish fires primarily by forming a crust over the fuel.
Numerical Ratings and Operational Procedures
- A Class A fire extinguisher rated 2 contains 2.5 gallons of water.
- The best method to extinguish a Class C fire is to shut off the power and treat it as a Class A or B fire.
- The pictograph system depicts Class A fires with a burning trash can next to a wood fire.
Hazard Categories and Extinguishing Methods
- The "Extra" hazard category includes automotive service or repair facilities.
- Placing a foam blanket over a burning liquid cuts off the oxygen supply.
- Multipurpose dry chemical agents prevent rekindling of Class A fuel by forming a crust over it.
Limitations and Maintenance
- A Class B foam extinguisher is not rated for cooking oil.
- Dry chemical extinguishers should be serviced and recharged after any discharge.
- Each Class D extinguishing agent must specifically match the fuel type it is intended to combat.
Extinguisher Ratings
- A Class B extinguisher with a rating of 40 indicates sufficient extinguishing power for 40 square feet of burning fuel.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
Description
Test your knowledge about fire extinguishers with these flashcards based on Chapter 8. Learn important concepts like the locations for extinguishers and classifications of fires. Perfect for anyone looking to enhance their understanding of fire safety equipment.
